<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			.top{
				background-color: #2F2F2F;
			}
			.head{
				width: 800px;
				height: 100px;
				margin: 0 auto;
				background-color: pink;
				
			}
			.body{
				width: 800px;
				height: 400px;
				margin: 0 auto;
				background-color: #008000;
			}
			.left{
				width: 300px;
				height: 400px;
				background-color: #FFA500;
				float: left;
			}
			.right{
				width: 500px;
				height: 400px;
				background-color: #00FFFF;
				float: right;
				
				
				
			}
		
		
		
		</style>
		
		
		
		
		
	</head>
	<body>
		<div class="top">顶部</div>
		<div class="head">头部</div>
		<div class="body">
			<div class="left">left</div>
			<div class="right">right</div>
		</div>
	</body>
</html>
